Question

All that is left in a packet of candy are 7 reds, 4 greens, and 2 blues,  What is the probability that a random drawing yields a green followed by a red assuming that the first candy drawn is put back into the packet? 

Answer 1

Multiply 7(reds) by 4 (greens) to get 2/13

Answer 2

probability of drawing a green = 4/13
Probability of drawing a red = 2/13
probability of drawing a green and then a red is 4/13 * 2/13 = 6/169